I-Corps: Software technology for performance-based wind design through dynamic shakedown

这个I-Corps项目更广泛的影响/商业潜力是开发软件工具，用于受极端风影响的各种建筑系统的基于性能的风设计（PBWD）。据估计，仅在2020年，美国就遭受了22次天气事件，造成了超过10亿美元的损失。为了提高建筑环境对极端风的适应能力，工程界有兴趣通过实施基于性能的工程的应用程序从根本上改变建筑物的设计以抵抗极端风。所提出的技术可以填补软件工具的未满足的市场需求，该软件工具为实践土木/结构工程社区提供了执行建筑系统的PBWD的手段。软件工具可以创造必要的设计自由度，创新，导致减少极端天气事件期间的经济和社会损失。这个I-Corps项目是基于软件技术的开发，通过基于可靠性的动态安定的结构系统的广泛类基于性能的风设计（PBWD）。该技术是基于风激建筑物的非弹性结构系统的理论和概率建模的最新进展。这些进展可能使，第一次，全面列入与瞬时塑性崩溃，低周疲劳和棘轮效应，这是基本的表征后屈服行为的结构系统受天气事件的故障机制。计算效率和由此产生的框架的鲁棒性允许引入一类新的软件工具，这些工具有可能为结构设计师提供实用的手段，以实现满足当前和未来建筑需求的设计，同时提高性能和降低成本的可持续性。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的学术价值和更广泛的影响评审标准。

The broader impact/commercial potential of this I-Corps project is the development of software tools for the performance-based wind design (PBWD) of a wide class of building systems subject to extreme winds. In 2020 alone, it is estimated that the United States was subject to 22 weather events that caused more than one billion dollars of losses. To increase the resilience of the built environment against extreme winds, there is interest from the engineering community to radically change how buildings are designed to resist extreme winds through the application that implement performance-based engineering. The proposed technology may fill the unmet market need for software tools that provide the practicing civil/structural engineering community with a means to carry out PBWD of building systems. The software tools may create the design freedom necessary for innovation leading to reduced economic and societal losses during extreme weather events.This I-Corps project is based on the development of software technologies for performance-based wind design (PBWD) of a wide class of structural systems through reliability-based dynamic shakedown. The technology is based on recent advances in the theory and probabilistic modeling of inelastic structural systems of wind excited buildings. These advances may enable, for the first time, the comprehensive inclusion of failure mechanisms associated with instantaneous plastic collapse, low-cycle fatigue, and ratcheting, which are fundamental for the characterization of the post-yield behavior of structural systems subject to weather events. The computational efficiency and robustness of the resulting frameworks have allowed the introduction of a new class of software tools that have the potential to provide structure designers with practical means to achieve designs that meet the current and future needs for buildings with enhanced performance and greater sustainability at reduced cost.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.